Q1_Aircraft: Gear Driven alternators

My dragonfly has a C90-12F with a generator (gear driven) and I have
been considering going to a Jasco gear driven Alternator (glossy
print says: delivers 14V at 700 RPM). I reallllly struggle parting
with $900 for one with very limited knowledge of them.

Does anyone know of a lower cost reliable gear driven alternator that
would work or could be modified for a c90?
Thanks,
Tad

Delivering 14 volts at 700 RPM is all well and good, but what is
important is how much current (amps) it will deliver at 14 volts at 700
RPM.

regards, -john-

________________________________

From: rebeccaandtad_simpson [mailto: rebeccaandtad_simpson@... ]
Sent: Thursday, February 17, 2005 8:02 PM
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Subject: [Q1_Aircraft] Gear Driven alternators



My dragonfly has a C90-12F with a generator (gear driven) and I have
been considering going to a Jasco gear driven Alternator (glossy
print says: delivers 14V at 700 RPM). I reallllly struggle parting
with $900 for one with very limited knowledge of them.

Does anyone know of a lower cost reliable gear driven alternator that
would work or could be modified for a c90?
Thanks,
Tad






________________________________

Yahoo! Groups Links


* To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

* To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.
<mailto: This email address is being protected from spambots. You need JavaScript enabled to view it. ?subject=Unsubscribe>

* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service < docs.yahoo.com/info/terms/ > .




[Non-text portions of this message have been removed]

John,
It is advertised as 14 V 50 Amp. The distributor says full power at 700 RPMs so
I assume 50.

John Loram < johnl@... > wrote:
Delivering 14 volts at 700 RPM is all well and good, but what is
important is how much current (amps) it will deliver at 14 volts at 700
RPM.

regards, -john-

________________________________

From: rebeccaandtad_simpson [mailto: rebeccaandtad_simpson@... ]
Sent: Thursday, February 17, 2005 8:02 PM
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Subject: [Q1_Aircraft] Gear Driven alternators



My dragonfly has a C90-12F with a generator (gear driven) and I have
been considering going to a Jasco gear driven Alternator (glossy
print says: delivers 14V at 700 RPM). I reallllly struggle parting
with $900 for one with very limited knowledge of them.

Does anyone know of a lower cost reliable gear driven alternator that
would work or could be modified for a c90?
Thanks,
Tad






________________________________

Yahoo! Groups Links


* To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

* To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.
<mailto: This email address is being protected from spambots. You need JavaScript enabled to view it. ?subject=Unsubscribe>

* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service < docs.yahoo.com/info/terms/ > .




[Non-text portions of this message have been removed]

---

Yahoo! Groups Links

To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

---

Do you Yahoo!?
Read only the mail you want - Yahoo! Mail SpamGuard.

[Non-text portions of this message have been removed]

What about the B&amp;C generator. Many VariEze owners use them and are very happy
with them. Mine has 625 trouble free hours so far.

John P.
VariEze N117PJ
Havre, Montana

---

Original Message

---

From: rebeccaandtad_simpson
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Sent: Thursday, February 17, 2005 9:01 PM
Subject: [Q1_Aircraft] Gear Driven alternators



My dragonfly has a C90-12F with a generator (gear driven) and I have
been considering going to a Jasco gear driven Alternator (glossy
print says: delivers 14V at 700 RPM). I reallllly struggle parting
with $900 for one with very limited knowledge of them.

Does anyone know of a lower cost reliable gear driven alternator that
would work or could be modified for a c90?
Thanks,
Tad



[Non-text portions of this message have been removed]

I was so surprised by your distributor's assertion that I went to the
Jasco web site and looked up the specs. The alternator delivers 50 amps
at 4000 RPM shaft speed, so it will depend on the gear ratio between
your crankshaft and the alternator drive.

I may be wrong here, but I think the usual gear ratio is 2:1. The
alternator starts delivering current at 1000 RPM and at 1400 RPM (700
RPM on the tach) it delivers 15 amps.

Here is a link to the chart;
www.skytronicsinc.com/drive_gear_ratio.htm

-john-


________________________________

From: REBECCA SIMPSON [mailto: rebeccaandtad_simpson@... ]
Sent: Friday, February 18, 2005 3:54 AM
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Subject: RE: [Q1_Aircraft] Gear Driven alternators


John,
It is advertised as 14 V 50 Amp. The distributor says full power at 700
RPMs so I assume 50.

John Loram < johnl@... > wrote:
Delivering 14 volts at 700 RPM is all well and good, but what is
important is how much current (amps) it will deliver at 14 volts at 700
RPM.

regards, -john-

________________________________

From: rebeccaandtad_simpson [mailto: rebeccaandtad_simpson@... ]
Sent: Thursday, February 17, 2005 8:02 PM
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Subject: [Q1_Aircraft] Gear Driven alternators



My dragonfly has a C90-12F with a generator (gear driven) and I have
been considering going to a Jasco gear driven Alternator (glossy
print says: delivers 14V at 700 RPM). I reallllly struggle parting
with $900 for one with very limited knowledge of them.

Does anyone know of a lower cost reliable gear driven alternator that
would work or could be modified for a c90?
Thanks,
Tad






________________________________

Yahoo! Groups Links


* To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

* To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.
<mailto: This email address is being protected from spambots. You need JavaScript enabled to view it. ?subject=Unsubscribe>

* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service < docs.yahoo.com/info/terms/ > .




[Non-text portions of this message have been removed]

---

Yahoo! Groups Links

To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

---

Do you Yahoo!?
Read only the mail you want - Yahoo! Mail SpamGuard.

[Non-text portions of this message have been removed]



________________________________

Yahoo! Groups Links


* To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

* To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.
<mailto: This email address is being protected from spambots. You need JavaScript enabled to view it. ?subject=Unsubscribe>

* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service < docs.yahoo.com/info/terms/ > .




[Non-text portions of this message have been removed]

John,
Thanks for the info and the link. I was emailing Blackwell who has them listed
on ebay. I could not get the links on their web page to work so I email several
questions - One response was full power at 700 rpms so I assumed this was all -
There is definately more data at the link below.

John Loram < johnl@... > wrote:
I was so surprised by your distributor's assertion that I went to the
Jasco web site and looked up the specs. The alternator delivers 50 amps
at 4000 RPM shaft speed, so it will depend on the gear ratio between
your crankshaft and the alternator drive.

I may be wrong here, but I think the usual gear ratio is 2:1. The
alternator starts delivering current at 1000 RPM and at 1400 RPM (700
RPM on the tach) it delivers 15 amps.

Here is a link to the chart;
www.skytronicsinc.com/drive_gear_ratio.htm

-john-


________________________________

From: REBECCA SIMPSON [mailto: rebeccaandtad_simpson@... ]
Sent: Friday, February 18, 2005 3:54 AM
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Subject: RE: [Q1_Aircraft] Gear Driven alternators


John,
It is advertised as 14 V 50 Amp. The distributor says full power at 700
RPMs so I assume 50.

John Loram < johnl@... > wrote:
Delivering 14 volts at 700 RPM is all well and good, but what is
important is how much current (amps) it will deliver at 14 volts at 700
RPM.

regards, -john-

________________________________

From: rebeccaandtad_simpson [mailto: rebeccaandtad_simpson@... ]
Sent: Thursday, February 17, 2005 8:02 PM
To: This email address is being protected from spambots. You need JavaScript enabled to view it.
Subject: [Q1_Aircraft] Gear Driven alternators



My dragonfly has a C90-12F with a generator (gear driven) and I have
been considering going to a Jasco gear driven Alternator (glossy
print says: delivers 14V at 700 RPM). I reallllly struggle parting
with $900 for one with very limited knowledge of them.

Does anyone know of a lower cost reliable gear driven alternator that
would work or could be modified for a c90?
Thanks,
Tad






________________________________

Yahoo! Groups Links


* To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

* To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.
<mailto: This email address is being protected from spambots. You need JavaScript enabled to view it. ?subject=Unsubscribe>

* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service < docs.yahoo.com/info/terms/ > .




[Non-text portions of this message have been removed]

---

Yahoo! Groups Links

To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

---

Do you Yahoo!?
Read only the mail you want - Yahoo! Mail SpamGuard.

[Non-text portions of this message have been removed]



________________________________

Yahoo! Groups Links


* To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

* To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.
<mailto: This email address is being protected from spambots. You need JavaScript enabled to view it. ?subject=Unsubscribe>

* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service < docs.yahoo.com/info/terms/ > .




[Non-text portions of this message have been removed]

---

Yahoo! Groups Links

To visit your group on the web, go to:
groups.yahoo.com/group/Q1_Aircraft/

To unsubscribe from this group, send an email to:
This email address is being protected from spambots. You need JavaScript enabled to view it.

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.


__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
mail.yahoo.com

[Non-text portions of this message have been removed]